Are you seriously asking that ?
Planes are instable to start with.
At 11:30: [MEDIA]
Polish company is 30 years old. It seems to me that their turbine stalls very early and actually cannot utilize the 70% efficiency for more than a...
Yes but engine out situation etc demand more stability.
Albion is an interesting caracter.
Gliders are a different kinda system altogether...all...
I think the H-Rotor ( cycloturbine/H-Darreius ) is not ready yet...I mean the design is still not 100% perfect. That is why so many investigate...
Yes their system was heavily flawed, but their conclusions are very interesting. Also the solidity was very low...you can see the difference here...
Best source on this kinda turbine is the NREL data of the MCDonnell Aircraft Giromill tests in 1974-1978...during the oil crisis.
You are on the right track...only ANEW company in Poland claims 70% efficiency for the simple H-Darreus type...and they may be even correct.
Errr...you might be surprised but at least 4 universities have counted that 59,3 % is only valid on HAWT propellers..VAWTs can exceed the limit...
I always wondered why Jack Northrop and Horten Brothers wanted to get rid of the rudders altogether ?
Isn't any attention a good attention ? You get the thrust line lower if you have more motors closer to the trailing edge.
This is good for all to read.
That is a neat foil as well.
How about having at least 4 x 5 KW engines and smaller dia props in the tail ?
Everything didn't go as planned in the beginning of aviation.
This could be used as a hypersonic plane launcher.
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